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Ancient worldMedieval worldEarly modern worldModern historyDisasters and epidemicsExploration and tradeEveryday life in the pastHistory mythsMysteries and strange events

Ancient world

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Not Bliss StartersAncient world
Why did the Western Roman Empire fall?

Historians agree the West lost central control through a cycle of military defeat and lost territory and revenue, but they disagree on how much to blame outside pressure versus internal failures.

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Not Bliss StartersAncient world
Why did the Classic Maya cities decline?

No single cause is agreed. Drought, warfare, and environmental and political strain all appear in the evidence, and researchers disagree about how much weight drought deserves.

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Medieval world

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How did the Vikings reach North America?

The Norse sailed in stages from Norway to Iceland, Greenland and then Canada. Archaeology confirms one site, L'Anse aux Meadows, dated to AD 1021.

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Early modern world

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Modern history

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Not Bliss StartersModern history
How did the Berlin Wall come down in 1989?

The Wall opened on the night of 9 November 1989 after a botched press announcement drew crowds to checkpoints, and guards at Bornholmer Strasse let people through without orders.

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Not Bliss StartersModern history
Who were the Radium Girls?

The Radium Girls were US factory women who were poisoned by radium paint while painting watch dials in the 1910s and 1920s. Their lawsuits helped shape workplace safety standards.

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Disasters and epidemics

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Not Bliss StartersDisasters and epidemics
What was 1816, the Year Without a Summer?

After Mount Tambora's 1815 eruption, 1816 brought cold, wet weather, failed harvests and famine across Europe and North America, with effects reaching Asia and some lasting cultural legacies.

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Exploration and trade

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Not Bliss StartersExploration and trade
What was the Columbian Exchange?

The Columbian Exchange was the transfer of plants, animals, diseases and people between the Americas and Afro-Eurasia after 1492, reshaping diets, populations and ecosystems on both sides.

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Everyday life in the past

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History myths

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Not Bliss StartersHistory myths
Did Vikings really wear horned helmets?

No horned helmet from the Viking Age has ever been found. The image comes largely from 19th-century art and from older Bronze Age horned helmets that predate the Vikings.

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Not Bliss StartersHistory myths
Did Einstein really fail mathematics at school?

No. Einstein excelled at mathematics. The myth likely grew from a failed entrance exam in other subjects and a reversed grading scale at his Swiss school.

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Mysteries and strange events

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